Tenney Junior Compact Temperature Test Chamber

The Tenney Junior temperature test chambers have been in the market for over 50 years. They are well suited for use in electronic, military, and pharmaceutical quality assurance and reliability testing, along with research testing and production processes. In keeping with the needs of today's lab, we specifically designed these benchtop and floor chambers to have a compact exterior yet an ample interior workspace to maximize valuable floor space. 


  • Space saving design - available as upright or bench versions
  • Low total cost of ownership
  • Field proven reliability with thousands in use worldwide
  • Vapor-tight, continuously welded interior
  • Easy to use controller


  • All models feature vapor-tight, continuously welded stainless steel interiors
  • Structural reinforcement is used at all critical points
  • Fiberglass insulation surrounds the temperature chamber to maximize insulating characteristics, thus ensuring minimal thermal transfer

Test Chamber Quality

TPS Thermal Product Solutions is a pioneer in the design and manufacturing of environmental test equipment. The Tenney Brand has been an industry leader since 1932. Our decades of experience, processes and procedures ensure quality and reliability of every test chamber or walk-in room we manufacture. Rest assured that you are purchasing a world-class piece of equipment built to perform and last.


We back our environmental test chambers with a comprehensive service organization. Factory trained, courteous and knowledgeable technicians provide on-site installation, maintenance and repair for your test chamber or room. In-house service technicians and a parts & service department stand ready to assist you. Contact our service department to inquire on preventive maintenance programs, extended warranties, calibrations services and more. For a full list of chamber services click here.

Intrinsically Safe Interior


  • Watlow F4T Temperature Controller

    Watlow F4T Temperature Controller

    The Watlow F4T Temperature Controller with INTUITION™ temperature process controller combines the flexibility of a modular I/O controller with best-in-class ease of use.


    • 4.3-inch, color touch panel with high-resolution, graphical user-interface
    • 1 to 4 control loops with TRU-TUNE+ adaptive control algorithm for superior controllability
    • 40 ramp and soak profiles with real-time clock and battery backup.
    • Ethernet Modbus® TCP connectivity
    • High-speed USB 2.0 host port
    • Modular design, which offers numerous types of field pluggable modules for maximum flexibility and easiest compatibility
    • Optional Data Logging capability
    • Optional Graphical Trend Chart
    • TPS provides panel mounted USB and Ethernet ports located on the front control panel of the equipment


  • GN2 Purge System

    GN2 Purge System

    • provides and inert atmosphere inside the chamber
    • minimizes moisture buildup
    • prevents condensation
    • prevents corrosion by eliminating oxygen in the chamber
  • Tempguard IV Overtemperature Protection

    Tempguard IV Overtemperature Protection

    • protects against product over/under temperature
    • microprocessor based controller that incorporates programmable high and low temperature limits
    • 100 ohm Platinum RTD used for temperature measurement
    • easy to use
  • Dry Air Purge System

    Dry Air Purge System

    • removes unwanted moisture and process vapors from chamber
    • a chamber valve prevents chamber from becoming pressurized
    • self regenerating twin tower heatless dessicant type dryer
    • activated by an event output from main controller

  • LinkTenn 32 Controller Software

    LinkTenn 32 Controller Software

    • interactive remote control and monitoring
    • alarm reporting and notification via email or fax
    • user-friendly profile program editor
    • logging, printing and graphing of process data
    • exporting of logging history data via CSV file for easy import into Microsoft Excel or analysis packages


  • Thermal Product Solutions
  • Thermal Product Solutions


Tenney Junior Environmental Test Chambers Specifications
Overall dimensions in inches/mm

Workspace W 16 / 406
D 11 / 279
H 11.75 / 298
Exterior W 37 / 940 25.75 / 655
D 22 / 559 22 / 559
H 31.75 / 806 60 / 1524
Temperature Range
Low C -68
High C +180
Utilities, etc
Refrigeration (2) 1/2 HP
Heater Capacity 500 W
Amps@120V / 1Ph / 60Hz 16
Amps Fuse 20
Unit Weight lbs/kg 260 / 118 292 / 133
Change Rates - Chamber Empty
Ambient to 200°C 60 minutes Ambient to -15°C 10 minutes
Ambient to 185°C 50 minutes Ambient to -40°C 20 minutes
Ambient to 160°C 40 minutes Ambient to -54°C 30 minutes
Ambient to 140°C 30 minutes Ambient to -65°C 40 minutes
Ambient to 105°C 20 minutes Ambient to -73°C 55 minutes
Ambient to 70°C 10 minutes Ambient to -75°C Ultimate
Ambient to 25°C 0 minutes
Live Load Capacity (Empty Chamber)
Temperature -40°C 170 Watts
-54°C 145 Watts
-65°C 105 Watts
-73°C 60 Watts
-75°C Ultimate